栏目

高山茅香Hierochloe alpina (Sw.) Roem. et Schult.

高山茅香Hierochloe alpina (Sw.) Roem. et Schult.

别名:alpine sweetgrass;

科名:禾本科 Gramineae

属名:茅香属 Hierochloe

《中国植物志》第9(3)卷176页
  1.高山茅香(禾本科图说)图版45:12-15
  Hierochloe alpina (Sw.) Roem. et Schult. Syst. Veg. 2: 515. 1817;禾本科图说623.图560. 1959;中国高等植物图鉴5: 99. 1976. ——Holcus alpinus Sw. in Willd. Sp. Pl. 4. 2: 937. 1806。
  多年生,具短根茎。秆高10-14厘米。叶鞘长于节间;叶舌膜质,长1-2毫米;秆生叶较短,长约5厘米,宽2-3毫米,基生叶较长而狭窄。圆锥花序长约3厘米,宽1-2厘米,紧缩;小穗长圆形,长5-6毫米;颖膜质,第一颖略短,具1-3脉,第二颖具3-5脉;雄花外稃背部具短毛,向上其毛渐长,边缘具纤毛,第一外稃近顶端着生短芒,第二外稃于背部中央着生1膝曲的芒,芒长4-5毫米;内稃具2脊,脊上具纤毛;两性花外稃长约4毫米,具短小尖头,上部具短毛;内稃与外稃等长,具1脉,脊的上部具纤毛。花果期7-8月。
  产我国东北。常生于海拔2300米左右的高山草原。在欧亚大陆寒冷地区也有分布。模式标本采自欧洲拉普兰。

《Flora of China》 Vol. 22 (2006)
Anthoxanthum monticola  (Bigelow) Veldkamp
高山茅香   gao shan mao xiang
Holcus monticola Bigelow, New England J. Med. Surg. 5: 334. 1816; Hierochlo? alpina (Swartz ex Willdenow) Roemer & Schultes; H. monticola (Bigelow) ┴. L?ve & D. L?ve; Hol-cus alpinus Swartz ex Willdenow.
Plant forming loose mats, shortly rhizomatous, base clothedin papery old sheaths. Culms solitary or few, erect, 10–40 cm tall, 2–3-noded. Leaf sheaths smooth, glabrous, longer than internodes, upper slightly inflated; leaf blades glossy, basal inrolled, 20–30 cm, 2–3 mm wide, culm blades shorter, flat; ligule 1–2 mm. Panicle contracted, oblong or ovate in outline, 1.5–4 × 1–2 cm; branches short, paired. Spikelets broadly oblong, 5–6 mm; glumes subequal, as long as spikelet, lower 1–3-veined, upper 3–5-veined; lower florets staminate, lemmas scabrid-pubescent on back, hispid toward apex, margins ciliate; first lemma emarginate with 1–3 mm, straight subapical awn; second lemma 2-cleft to middle or below, awned from sinus, awn weakly geniculate, 4–7 mm; bisexual floret ca. 4 mm, pilose toward apex; palea 1-veined, ciliolate along upper part of vein; anthers ca. 2.5 mm. Fl. and fr. Jul–Aug. 2n = 56 (also 58, 63, 64, 66, 68, 71, 72, 74–78).
Alpine steppe; ca. 2300 m. NE China [Japan, Korea, Mongolia, Russia; N Europe, North America].
This is an arctic-alpine species of both the Old and New Worlds.

The specific epithet of Holcus alpinus cannot be used when this name is transferred to Anthoxanthum because the heterotypic name A. alpinum ┴. L?ve & D. L?ve already exists.

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